// This function probably needs to be modified a bit...
static SIZE_OR_ERROR FS_r_simultaneous(struct one_wire_query *owq)
{
// Device not locked.
OWQ_allocate_struct_and_pointer(owq_given);
if (SpecifiedBus(PN(owq))) {
return FS_r_given_bus(owq);
}
memcpy(owq_given, owq, sizeof(struct one_wire_query)); // shallow copy
// it's hard to know what we should return when reading /simultaneous/temperature
SetKnownBus(0, PN(owq_given));
return FS_r_given_bus(owq_given);
}
/* After parsing, choose special read based on path type */
static SIZE_OR_ERROR FS_read_distribute(struct one_wire_query *owq)
{
// Device not locked
SIZE_OR_ERROR read_or_error = 0;
LEVEL_DEBUG("%s", PN(owq)->path);
STATLOCK;
AVERAGE_IN(&read_avg);
AVERAGE_IN(&all_avg);
STATUNLOCK;
/* handle DeviceSimultaneous */
if (PN(owq)->selected_device == DeviceSimultaneous) {
read_or_error = FS_r_simultaneous(owq);
} else {
read_or_error = FS_r_given_bus(owq);
}
STATLOCK;
if (read_or_error >= 0) {
++read_success; /* statistics */
read_bytes += read_or_error; /* statistics */
}
AVERAGE_OUT(&read_avg);
AVERAGE_OUT(&all_avg);
STATUNLOCK;
LEVEL_DEBUG("%s returns %d", PN(owq)->path, read_or_error);
//printf("FS_read_distribute: pid=%ld return %d\n", pthread_self(), read_or_error);
return read_or_error;
}
/* After parsing, but before sending to various devices. Will repeat 3 times if needed */
SIZE_OR_ERROR FS_read_postparse(struct one_wire_query *owq)
{
struct parsedname *pn = PN(owq);
SIZE_OR_ERROR read_or_error;
/* Normal read. Try three times */
LEVEL_DEBUG("%s", pn->path);
STATLOCK;
AVERAGE_IN(&read_avg);
AVERAGE_IN(&all_avg);
STATUNLOCK;
/* First try */
STAT_ADD1(read_tries[0]);
/* Check file type. */
if (pn->selected_device == NO_DEVICE || pn->selected_filetype == NO_FILETYPE) {
if (KnownBus(pn) && BusIsServer(pn->selected_connection)) {
/* Pass unknown remote filetype to remote owserver. */
read_or_error = FS_r_given_bus(owq);
} else {
/* Local unknown filetypes are directories. */
return -EISDIR;
}
} else {
/* Local known filetypes are handled here. */
read_or_error = (pn->type == ePN_real) ? FS_read_real(owq) : FS_r_virtual(owq);
}
STATLOCK;
if (read_or_error >= 0) {
++read_success; /* statistics */
read_bytes += read_or_error; /* statistics */
}
AVERAGE_OUT(&read_avg);
AVERAGE_OUT(&all_avg);
STATUNLOCK;
LEVEL_DEBUG("%s return %d", pn->path, read_or_error);
return read_or_error;
}
